Resistance of corrosion for AISI/SUS 309 stainless is excellent,
Type 309’s content of carbon is higher than Type 309S.This material is mainly used in furnace parts,heating elements,boiler baffles,chemical processing equipment,etc.

Stainless steels are high-alloy steels which have higher corrosion resistance compared to other steels due to the presence of large amounts of chromium. Based on their crystalline structure, they are further divided into ferritic, austenitic, and martensitic steels.

Grade 309 stainless steel has high corrosion resistance and strength compared to 304 stainless steel. The following datasheet gives an overview of grade 309 stainless steel.